Larger PLA prints warping

Hey guys, I seem to have trouble with larger prints. I was printing a face mask and all was well but half way through, my nozzle started dragging on the print and it failed (obviously) I have a E3D nozzel upgrade, leveled the bed multiple times and am printing on a glass sheet on top of my aluminum bed with a bed heat of 60°. I have messed with the temps here and there but keep getting the same result. I'm assuming that it may be cooling and causing this to happen but I'm not sure. Anyone have any tips?